Private Sub①______ '单击List1,将列表框中选中的内容显示在Text1中
Text1.Text= List1.List(List1.ListIndex) '将当前选中的List1的内容显示在Text1中
Text2.Text=" "
End Sub
Private Sub Command1_Click()
Dim i As Integer,cp As String,c As String
cp= Text1.Text
For i =②_____To 4 Step-1
с= Mid(cp, i, 1)If c>="0"And c<="9" Then '若c是数字字符,则记录该数字
If Val(c)mod 2-1 Then
Text2.Text ="偶数日期限行"
Else
Text2:Text ="奇数日期限行"
③______
Exit For '退出循环
End If
Next i
End Sub
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2